Came and installed a new Coleman inverter 5 ton. We removed the old unit recovered all the old refrigerant We then placed leveled new equipment and adapted all copper connections and sealed all ductwork. We ran drains and brazed in linsets. We tested system with nitrogen and evacuated system below 500 microns.. we then charged system with 410a refrigerant we had to add 1 lb to the factory charge. We ran units tested operations and ensured everything is operational at this time.